FASTENING UNIT AND PROSTHESIS HAVING THE UNIT Russian patent published in 2002 - IPC

FIELD: medical engineering. SUBSTANCE: device has fastening member which end face is on the entrance side and cylindrical peripheral surface provided with screw thread, having cutting recesses arranged in circle coming to the end face surface in axial direction that are disposed on the frontal self-tapping end adjacent to the mentioned end face surface. The rear portion of the threaded peripheral surface has grooves arranged in circle for collecting and distributing tissue. The grooves radially exit outside and pass at least partially in longitudinal direction of the fastening member, each of which being attached to one of cutting blades for collecting bone material from the recess and its transporting in radial direction to scatter it over a circle around the internal wall of the cavity when introducing the fastening unit. EFFECT: stable and reliable fixation. 18 cl, 10 dwg